I spent a lot of time tonight, gradually downloading meta data for, and tidying up a big batch of ebooks. (well, that was in between bricking my PRS-505 due to a bad font )

One thing thats quite cumbersome in Calibre, is removing unwanted tags which have been downloaded. Things like 'Audio Book' etc.

I think it would be great if you could right click a tag in the filter listbox on the left. You could then have the option to rename the tag, or delete it from all books.

This would make maintaining a collection so much easier

Thanks

It already exists. Just not quite where/how you wold think of it.

Pick a book that does not use the offending tags
Click the Edit meta data button

See the line Tags? Click the button on the right (Open Tag editor)
Now you see a list of tage.
Highlight the ones you want to DELETE.
See that button on the LEFT
Click it..
You will get a message (you can save to clipboard) of the titles affected)
Done